Related Clues:

• Missives
• Epistles
• Allow the rest to get the post
• They sound as if they're male
• Twenty-six of them will go into only one 16 down
• They get stamped on
• Do they get into the post of landlords?
• Does not drink in the reels in a mess in the mail
• It takes 34 across to make one post
• Looks evil about a teetotaller if one sounds male
• There's a post for them - all twenty-six
• 1 down
• The sound of the male alphabet
• All for the male, by the sound of it
• A to Z, e.g